小编nco*_*ers的帖子

例如，这会使gnuplot-x11图形窗口保持打开状态，直到按下某个键：

gnuplot -e "plot \"file\" ; pause -1 \"text\""

如何保持打开直到手动关闭？

昨天在 中更新了以下软件包后debian wheezy，tr命令停止工作。

Start-Date: 2016-02-16  23:10:06
Commandline: apt-get dist-upgrade
Upgrade: libkrb5-3:amd64 (1.10.1+dfsg-5+deb7u6, 1.10.1+dfsg-5+deb7u7),
libk5crypto3:amd64 (1.10.1+dfsg-5+deb7u6, 1.10.1+dfsg-5+deb7u7),
libgraphite2-2.0.0:amd64 (1.1.3-1, 1.3.5-1~deb7u1),
libc-bin:amd64 (2.13-38+deb7u8, 2.13-38+deb7u10),
libc6-i386:amd64 (2.13-38+deb7u8, 2.13-38+deb7u10),
libgssrpc4:amd64 (1.10.1+dfsg-5+deb7u6, 1.10.1+dfsg-5+deb7u7),
iceweasel-l10n-de:amd64 (38.6.0esr-1~deb7u1, 38.6.1esr-1~deb7u1),
locales:amd64 (2.13-38+deb7u8, 2.13-38+deb7u10),
iceweasel:amd64 (38.6.0esr-1~deb7u1, 38.6.1esr-1~deb7u1),
libkrb5support0:amd64 (1.10.1+dfsg-5+deb7u6, 1.10.1+dfsg-5+deb7u7),
multiarch-support:amd64 (2.13-38+deb7u8, 2.13-38+deb7u10),
libgcrypt11:amd64 (1.5.0-5+deb7u3, 1.5.0-5+deb7u4),
libkadm5clnt-mit8:amd64 (1.10.1+dfsg-5+deb7u6, 1.10.1+dfsg-5+deb7u7),
libkadm5srv-mit8:amd64 (1.10.1+dfsg-5+deb7u6, 1.10.1+dfsg-5+deb7u7),
libc6-dev:amd64 (2.13-38+deb7u8, 2.13-38+deb7u10),
krb5-locales:amd64 (1.10.1+dfsg-5+deb7u6, 1.10.1+dfsg-5+deb7u7),
libkdb5-6:amd64 (1.10.1+dfsg-5+deb7u6, 1.10.1+dfsg-5+deb7u7),
libgssapi-krb5-2:amd64 (1.10.1+dfsg-5+deb7u6, 1.10.1+dfsg-5+deb7u7),
libc-dev-bin:amd64 (2.13-38+deb7u8, 2.13-38+deb7u10),
libc6:amd64 (2.13-38+deb7u8, 2.13-38+deb7u10),
libc6-dev-i386:amd64 (2.13-38+deb7u8, 2.13-38+deb7u10)
End-Date: 2016-02-16  23:10:28 …

NTP池DNS服务器没有AAAA记录，只有A记录，这正常吗？

我想知道池中一些NTP服务器的IPv6地址。

NTP 测试结果 - pool.ntp.org

Execution date: Tue, 23 May 2017 23:10:46 GMT
NTP server: pool.ntp.org
test type: Query both.

IPv4测试结果

Result:OK
Server:213.251.53.187
Stratum:2
Offset:0.000410
Delay:0.03044

IPv6测试结果

Result:Fail
Server:Invalid hostname / IP address
Stratum:0
Offset:0.000000
Delay:0.00000

NTP 测试结果 - pool.ntp.org @ 2017 年 5 月 23 日星期二 23:10:46 GMT